Description
Number of Tests Included:
Single blood analysis for PT and INR.
What is a PT/INR Test?
A PT/INR test measures the time it takes for your blood to clot (prothrombin time) and standardizes the result as INR to allow for consistent interpretation, especially for people on anticoagulant medication.
Purpose of the Test:
Monitor patients on oral anticoagulants (such as warfarin)
Diagnose bleeding or clotting disorders
Evaluate liver function and vitamin K status
Aid in surgical risk assessment
Who Should Get This Test?
Individuals taking anticoagulant medications
Patients with unexplained or prolonged bleeding
Those being evaluated for liver disease or before surgery
Components of the Test:
Measurement of prothrombin time (PT)
Calculation of international normalized ratio (INR)
Understanding the Test Report:
A prolonged PT/INR may suggest bleeding disorders, liver dysfunction, or the effects of medication. The ideal INR target may vary based on your specific treatment—your doctor will interpret results in context.
Preparation and Procedure:
No special preparation typically required (unless advised by your doctor)
Blood is drawn from a vein in your arm
How is the Test Done?
A blood sample is collected and sent to the laboratory to measure prothrombin time and calculate the INR.
Is Fasting Required?
Fasting is not usually required for this test.
Best Time for Test:
As recommended by your doctor, especially for regular monitoring if on anticoagulant therapy.
Booking and Checking Reports:
You can book the test online via SDL, arrange home sample collection, and view or download your results once ready.
